@startumltitle ONAP Scaling Use Cases
actor Operator
box "VNFC's"
    entity "Existing VNFC" as VNFC
    entity "New VNFC" as VNFC_New
end box
participant VID
participant "APPC/SDNC" as Controller
participant SO
participant OOF
participant Policy
participant DCAE
== USE CASE SPECIFIC FUNCTIONALITY ==
alt
    group Manual Use Case
        autonumber 100
        Operator -> VID : Create New Module(gui)
        VID -> VID : Stores model
        Operator -> VID : Do Scale Out (gui)
        VID -> SO : Scale Out
    end
else
    group Customer Order Use Case
        autonumber 200
    end
    note right
        Should this somehow combine with manual use case?
    end note
else
    group Auto Use Case
        autonumber 300
        VNFC -> DCAE : Telemetry (Dmaap)
        DCAE -> Policy : Control Loop Event (DMaap)
        Policy -> SO : Scale Out (Dmaap)
    end
end
== COMMON FUNCTIONALITY ==
autonumber 1000
SO -> Controller : HealthCheck() (DMaaP)
Controller -> VNFC : HealthCheck() (RESTCONF)
VNFC -> Controller : HealthCheck Response
Controller -> SO : HealthCheck Response (DMaaP)
SO -> OOF : Homing Request (DMaaP???)
OOF -> Policy : Homing Policy request (DMaaP???)
Policy -> OOF : Homing Policy decision (DMaaP???)
OOF -> SO : Homing Placement (DMaaP???)
SO -> Controller : ConfigScaleOut()
Controller -> VNFC_New : Creates New Instance
VNFC_New -> DCAE : Telemetry@endUML